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Biology 2244A/B Lecture Notes - Lecture 2: Thames Valley District School Board, Stratified Sampling, Sampling Frame

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isldrkn
7 Feb 2022
School
Western University
Department
Biology
Course
Biology 2244A/B
Professor

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According to the research question, population of interest is students who are attending formal elementary to early high school (grades 1-10). Unit of interest would be a single student who is attending formal elementary to early high school. The research is being conducted by western university, which is located in london, ontario. In order to minimize travel costs and increase accessibility, it makes sense to target students who are in grades 1-10 and attend schools within thames valley district school board (tvdsb). This sampling frame is advantageous as it allows resources to be allocated to the actual research rather than travel expenses. The high age range that is being studied also allows the sampling frame to reflect the entire population, and to be generalized in a more accurate manner. A disadvantage of this sampling frame might be the fact that only students from one school board,

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The Whitehall study is a ground-breaking longitudinal (prospective cohort) study that clearly demonstrated the association between social determinants of health (the social gradient) and morbidity and mortality (cardiovascular disease) in a population of British civil servants (Breeze et al., 2001; Chandola et al., 2008; Marmot et al., 1978).

In no more than 1,000 words please address the following short-answer questions: 

What is the sampling frame for each phase of the Whitehall study (Whitehall I and II)? 

How was disease risk assessed (both in data collection and analysis) in each of the three studies, and why? 

To what extent can the results of each of the three studies can be generalised to other populations (include reasons for your answer)?

 Would it be feasible to conduct a similar study in Australia using an existing cohort such as the 45 and up study cohort, or the Australian Women’s longitudinal study cohort? Why or why not?

Assessment criteria  Knowledge and understanding of prospective cohort studies  Knowledge and understanding of social determinants of health  Knowledge an understanding of the concepts of sampling and bias  Use of mathematical concepts to describe sampling frame and disease risk  Interpretation of the findings of the Whitehall study and its generalisability to other populations  Academic presentation including accurate referencing using APA style